An independent junior school and nursery has been targeted by vandals.
Preston Police have released CCTV pictures of four young men they would like to speak to.
Criminal damage was caused to Highfield Priory School.
A police spokesman said: “There has been a significant amount of damage which has caused significant disruption at the school.”
The school is located off Fulwood Row, Ribbleton.
The incident took place on Monday 25 June.
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Anyone with information should get in touch with either PC 6997 or PCSO 7579 by e-mailing 7579@lancashire.pnn.police.uk and quoting crime number SA1813849.